Four Seasons 1331N A/C Compressor and Component Kit

Four Seasons PAC-Kit w/ New Compressor

Restore A/C performance on select GM vehicles with the Four Seasons PAC-Kit w/ New Compressor, part number 1331N. This kit is built for LTR4 compressor applications and matches the listed pulley and coil configurations for a direct-fit repair on 1985-1987 Buick, Chevrolet, Oldsmobile, and Pontiac models.

Key Features

• Four Seasons A/C compressor kit for LTR4 compressor applications
• Includes a new compressor for the listed vehicle applications
• Application-specific fitment for 1985-1987 Buick Regal, Chevrolet El Camino, Chevrolet Monte Carlo, Oldsmobile Cutlass, Oldsmobile Cutlass Salon, Oldsmobile Cutlass Supreme, Pontiac Bonneville, Pontiac Grand Prix, and 1986 Pontiac Bonneville
• Configured for vehicles with the specified 5.5-inch or 5-1/2-inch pulley and 9 o'clock coil notes where listed
• Part number 1331N for accurate catalog matching

Product Details

The Four Seasons BrandLine PAC-Kit w/ New Compressor is a vehicle-specific HVAC repair solution for select rear-wheel-drive GM platforms. Part number 1331N is listed for 1985-1987 Buick Regal, Chevrolet El Camino, Chevrolet Monte Carlo, Oldsmobile Cutlass, Oldsmobile Cutlass Salon, Oldsmobile Cutlass Supreme, Pontiac Bonneville, and Pontiac Grand Prix applications with LTR4 compressor configurations. Use this kit when replacing the compressor on the specified Buick Regal, Oldsmobile Cutlass, and Pontiac Grand Prix A/C systems and related models shown in the fitment data.

What It Helps Address

• Loss of A/C cooling from compressor wear or failure
• Noisy compressor operation in LTR4-equipped systems
• Refrigerant circulation problems tied to a failing compressor
• Service needs on older GM A/C systems with the listed pulley and coil configurations

Installation Notes

Verify the vehicle’s compressor style, pulley diameter, and coil orientation against the fitment notes before installation. Confirm the application matches the listed year, make, and model exactly, since the fitment varies by configuration. Follow standard HVAC service procedures, including system evacuation, flushing where required, and correct oil handling for the replacement compressor.

Quality Assurance

Four Seasons supplies HVAC service parts for automotive air conditioning repairs, and part number 1331N is cataloged for the exact applications shown above. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.